Hydrometer



Sept. 4, 1928.

L. EDELMANN HYDROMETER Filed May 22, 1925 eodew un Patented Sept.. .l,

narran sTaTas l rnTanT corrieri.,

)LEU JEDELZIANN, OF CHICAGO, IILINGIS, ASSIGNOR TO E. EDELMANN & C0., FCHICAGO, ELLINOES, A CORPORATON OF Ill'illdD'OIS.'l

EYDROMETER.

Application tiled May 22, 1925. Serial No. 32,@9

This invention relates to hydrometers, and particularly to a hydrometerof the syringe type such as is used .in testing battery fluids, radiatorsolutions and the like.

'llhe primary object,of my invention is to provide convenient means forsuspending and supporting the hydrometer when not in use.

A further object resides in so arranging the lo parts that the suspendedhydrometer will be supported in a manner to prevent leakage or drippingof any liquid, usually acid solution, which may remain after use.

Another object lies in providing a hydrom- 35 eter structure which canbe used without danger of frangible portions thereof being broken ordamaged.

Yet another object is to so construct the supporting means that it canbe embodied with various types and constructions of hydrometers.

A still further object is to provide a supporting means which willfunction eciently for suspension of the hydrometer, and which 'willprevent. the instrument from. rolling when laid down.

With the above and other objects in view, which will be apparent tothose skilled in the art, this invention includes certain novel featuresin construction andcombinations of parts which will be set forth inconnection with the drawing.

lin the drawing:

Figure l is a view in side elevation of a hydrometer embodying myinvention. i

l'ig. 2 is a view in elevation showing the hydrometer in the position itassumes when suspended.

lHig. 3 is a end of this type of hydrometer showing a modification inthe construction.

liig. 4 is a view in elevation illustrating a `modified type ofhydronieter embodying my invention.

fragmentary view of the intake Fig. 5 is a fragmentary view in elevationFig. 8 is a view in elevation illustrating still another type ofhydrometer structure embodying my invention. l

rJlhe parts as illustrated in Figs. 1, 2 and 3, of my present inventionare embodied with a syringel hydrometer structure similar to that sho-wnin Patent No. 1,245,449, however, it is to be understood that thisinvention can be embodied with substantially any and all types ofsyringe hydrometers.

The transparent barrel or jar l having the hydrometer gauge 2' thereinhas a bulb 3 at one end, and the housing 4 at the remaining end, thishousing being provided with an elongated tip or spout 5 of relativelysmall diam-eter to be fitted through a battery cell opening or into anyother receptacle containing the electrolyte or other duid to be tested.

@n one side of the elongated tip or spout 5 l mold or otherwise form aloop 6 adjacent the housing 4, and at such a position that the size ofthe relatively small tip or spout is not increased and no projection orextension is odered which would prevent or hinder the free insertion andremoval of the tip or spout into and from the opening of a receptacle.lin practice ll have found that the housing 4, tip 5, and suspendingloop 6, can be molded to be integral, but it is possible that the loop 6might be made as a separate part and might be vulcanized onto orotherwise associated with the tip and housing. When a hydrometerconstructed as set forth above is to be used the loop 6 does not in anyway interfere,

and when the hydrometer is to be suspended it can be hung upon a nail7,- or upon any other support or projection, after the mannerillustrated in Fig. 2. As the bulb 3 and the housing 4 project beyondthe barrel or jar l, of glass or other frangible material, and are oflarger diameter, the hydrometer will be suspended with the frangibleportion l entirely out of contact with the wall 8 or other member orstructure in which the supporting nail 7 is held.

As shown in Fig. 3, the housing 4' has the tip or spout 5 extendingtherefrom,land the parts are substantially the same as illustrated inFig. l, with the exception that the suspending loop 6 is located on theside of the housn 4 at a point adjacent the connection of the ousingwith the frangible barrel or 'ar l. p As illustrated in Fig. 4, the hoal.; il diS- pensed with and the tip 9 is carried by a sleeve 10 adaptedto be tted over one end of the glass barrel or jar, and the suspendingloop 11 is located at the base of the tip or spout 9 where the samewidens out to give the increased diameter of the sleeve 10.

Fiv. 5 shows a hydrometer structure substantlally the same as Fig. 4with the exception that the suspending loop 11 is provided on one sideof the sleeve 10 and the tip or spout 9 is thus entirely unobstructedthrou hout its length.

Wil the particular hydrometer structure shown in Fig. 6 the tip or spout12 is carried by a sleeve 13 which lits over the end of the barrel orjar, and a plug 14 is inserted within the open end of the barrelor jar.The sus-k pending loop 15 is in this instance located atthe base of thetipl or spout 12.

The disclosure in Fig. 7 is similar to the showing in Fig. 6, and herethe suspending loop 15 is located on one side ofpsleeve 13 to avoid anyprojection on the tip or spout 12. In each of the forms of hydrometer ashereinbefore described the float barrel 1 is adapted to be fittedintoand held within a cap or cup portion formed on the end of thehousing 4 or within the sleeves 10, 10', 13 and 18. The ioat barrel canbe provided with a bead around its end and the cap or cup portion wouldthen have a corresponding groove, or this connection can be made in anyother desired manner, such connections being old and well known in thisart.

In Fig. 8 the tip or spout 16 is carried by a ilange 17 and this ange 17has a plug 18 which is fitted within one endv of the glass barrel or'ar. The suspending loop 19 is located att e base of the tip or spout 16adjacent flange 17.

It is referable that the suspending loop be forme to project radiallywith respect to the remaining portions of the hydrometer structure as inthis relation it will extend to offer an obstruction to prevent theinstrument from rolling when the hydrometer is laid down.

While I have herein shown and described vmy invention incorporated withcertain speciiic types and constructions of syringe hydrometers, andhavesuggestedonly certain other possible adaptations, it will beappreciated that a hydrometer constructed in accord'- ance -with myinvention can be suspended t or spout up ermost so that an acid electroyte or other uid retained in the barrel after use will notdriptherefrom, and

it will be appreciated thatmy invention can be employed with andembodied in a number of other types and constructions of syringe theclosure member projecting radially therel from to prevent the instrumentfrom rolling when laid down.

2. With a syringe, hydrometer having a liquid `spout at one end, asupporting loop adjacent the base end of the spout to provide forsuspension of the hydrometer with the spout uppermost, said supportingloop projecting radially as a stop to prevent the instrument fromrolling when laid down.

3. A syringe hydrometer comprising two end members composed ofnon-frangible flexible material and one of which is cup-shaped anddesigned to encase a hydrometer gauge and an intermediate :trangiblebarrel, the end members including projecting parts adapted to maintaintheintermediate rangible portion out of contact with a plane surface,and a supportingy loop on the cup-shaped end member by which thehydrometer can be suspended, said supporting loop project-ing laterallyfrom said member to prevent the instrument from rolling when laid down.

4. The combination with the barrel of a hydrometer syringe, of acylindrical rubber member surrounding the barrel and having a projectingperforated ear. 5. The combination with a hydrometer barrel of a ringsurrounding a part of the barrel and having an eye for 'suspending theSame from a support, the ring and eye being located at such a point thatthe syringe will hang in an inverted position when suspended by the eye.

6. rIhe combination with the barrel of a hydrometer syringe of anannular member fitting on the barrel and having a projecting perforatedear. y I

7. A hydrometer syringe having a perforated'ear projecting therefrom asa suspendingloop, said ear being located between the center of gravityand the inlet end of the syringe to hang. said syringe in an invertedpositionwhen suspended by the ear.

In testimony whereof I hereunto alix my LEO EDELMANN.

signature.

